Roller bearing and mounting therefor



April 1930. w. B. BRONANDER 1,752,777

ROLLER BEARING AND MOUNTING THEREFOR Filed June 11, 19127 3 Sheets-Sheet 1 INVENTOR W & ATTOR 5 April 1930. w. B. BRONANDER Q 1,752,777

ROLLER BEARING AND MOUNTING THEREFOR Filed June 11, 1927 5 Sheets-Sheet 2 INVENTOR /7@ 071 B. Bra/m Ira er MMEMM ATTORNE April 1930- w. B. BRONANDER 1,752,777

ROLLER BEARING AND MOUNTING THEREFOR Filed June 11, 1927 3 Sheets-Sheet 5 BY M V ATToRNZs Patented Apr. .1, 1930 UNITED STATES mm! B. BBONANDEB, OI KONTOLAIB, NEW JERSEY" BOLLER' BEARING AND MOUNTING THEREFOR Application filed June 11,

This invention relates to roller bearings and to roller bearing mountings.

The roller bearing and mounting embod ing the invention have been particular y 6 developed for heavy vehicles, such as railway trucks and the invention has for its salient object to provide an efiicient bearin and a simple and practical mounting for t e bear- Another object of the invention is to provide a mounting so designed that the bearing can be easily and readily assembled in and removed from its mounting.

Another object of the invention is to provide a hearing so constructed and arranged that it can be reversed, thus lengthening the 'life of a bearing. Y 1

Further objects of the invention will appear from the following specification taken so in connection with the drawin which form a art'of this application, an in which ig. 1 is an elevational view partly in section and partly broken away showing the manner in which the bearing 1s mounted on a pedestal or supporting frame of a truck;

Fig. 2 is an end elevation of the structure shown in'Fig. 1;

Fig. 3 is a vertical sectional elevation of a bearing constructed in accordance with the invention;

Fig. 4 is an end elevation of the structure shown in Fig. 3, the axle beingshown in section; i I

Fig. 5 is a view partly in section and partly in ltiop plan showing the bearing illustrated in i 3' Fi 6 is a sectional elevation taken substantlally on line 6-6 of Fig. 3;

Fig. 3, but illustrating another form of device constructed in accordance with the in-' vention;

Fig.8 is an end elevation of the structure shown in Fig. 7, the axle being shown in section;

Fig. 9 is a view partly in section and partly in top plan showing the bearing illustrated in Fig. 7; and

Fig, 10 is a vertical sectional elevationtaken substantially on line 10-10 of Fig. 7.

Fig. 7 is a sectional elevation similar to 1987. Serial No. 188,111.

The invention briefly described consists of a roller bearing of suitable construction and comprising an inner race and an outer race and rollers mounted between the races. The bearing is mounted between vertical J6. ands frames of a pedestal, the outer race mg rotatably mounted in a channel in the pedestal or frames and means being provided on opposite sides of the bearing for slidably supporting the bearing on the pedestal. In one form of the invention, the bearing is mounted in and enclosed by a two-part casing and in another form of the invention, the bearing is mounted in and enclosed by a one piece yoke. Further details of the invention will appear from the following descri tion.

igs. 1 and 2 illustrate the manner of mounting the bearing on a truck, -such as a railway truck. In these views, there is shown 79 a horizontal frame member which has secured thereto a pair of vertical frame members 11 and 12 which form the pedestal in which the bearin is mounted.

Each vertical ame member as shown in section in Fig. 5 has vertically extending,

ipaced portions 15 and 16, a vertical channel dbiiieng disposed between the portions 15 An suitable form of roller bearing may be utilized and in the form of the invention shown in Figs 3 to 6 inclusive, there is illustrated a bearing com rising an inner race formed of a pair of rings and 21 having i oppositely inclined bearing surfaces 22 on which are mounted two sets of rollers 28 and 24. The rings 20 and 21 formin the inner race are mounted on the wheel e The rollers 23 and 24 engage oppositely inclined or conical bearing surfaces 28 an 29 of the outer bearing race 30. The bearingrace 30 has inwardly extending ribs or flanges 31 at the side faces thereof which are pro vided with thrust surfaces 32 which take the end thrust of the rollers 23'and 24. The outer surface 83 of the outer bearing race 80 is spherical. i The axle 25 as illustrated in Fig. 3 is reduced forming a shoulder 35 against which seats a collar 36 having an extension 37 at the inner end thereof provided with an arcuate end surface 38, the are on which the surface 38 is formed being drawn about the center of the hearing as a center.

The inner ring abuts against the collar 36 and the outer ring 21 of the inner race is engaged by a nut or threaded collar 40 which is threaded on a two-part or split threaded ring 41 mounted in an annular groove 42 formed adjacent the outer end of the axle.

Oil distributing rings 43 are preferably mounted on the outer surfaces of the nut 40 and collar 36.

The bearing illustrated in Figs. 3 to 6 inelusive is enclosed and mounted within a two-part casing formed of sections and 51. The sections 50 and 51 have formed therein inwardly projecting webs 52 and 53 at the upr and lower ends thereof and have spherical inner surfaces 54 and 55 within which the outer race 30 is mounted. The race 30 has inwardly extendin projections 56 provided with arcuate sur aces 57 which coact with correspondin ly curved surfaces 58 formed on the inner eh es of the webs52 and 53. The curvatures of these surfaces are drawn about the center of the hearing as a center.

The sections 50 and 51 also have formed on the upper portions thereof outwardly extending parallel webs 59 and 60.

The sections 50,and 51 are so formed as shown in Fi 5 that vertical surfaces will fit between t e portions 15 and 16 of the guide frames 11 and 12 of the edestal and the sections are further provi ed with flanges 66 which secure the bearing casing in position to slide betweenthe frames 11 and 12.

As shown in Fig. 5 when the bearin and the casing sections which enclose the ar.- ing are mounted in position between the side frames or legs of the pedestal, the outer race 30 projects into the channel 17 formed in the frames between theportions 15 and 16.

The section 50 of the casing is provided with a filling opening 67 which is normally closed by a plug 68.

Casing 51 has an inwardly projecting portion 70 and a packing ring 71 is mounted betwen the portion 70 and the outer surface of the collar 36 for preventing the escape of lubricant from the bearing.

The sections 50 and 51 are secured together b bolts 72, the parts bein so proportioned t at the webs 52 and 53 wil be properly positioned with respect to lJhBPIfOjGCtIOIlS 56 on the outer race 30. The manner of assembling the hearing will be clear from the foregoing description but may be briefly described as follows. The inner section 51 is first laced around the axle 25 and the collar 36 is then placed in position. The inner and outer races and the rollers therebetween are then positioned around the axle and the split ring 41 is placed in the groove 42 and collar 40 is threaded on the ring, thus securing the arts in position. The other section 50 of t e casin is then placed around the axle and the bolts 2 are inserted and the casin sections are secured together. The assem led bearing can then be inserted between the side frames 11 and 12 of the pedestal.

The form of the invention illustrated in Figs. 7 to 10 inclusive is similar to the embodiment shown in Figs. 3 to 6 but differs therefrom in that the bearing is carried by a one pieceyoke instead of a two piece casing. In Fig. 7, the roller bearing comprises an inner race made up of two sections 20 and 21, two sets of rollers 23 and 24 and an outer race 30. The inner race is mounted on the axle 25 and the outer surface 33 of the outer race is spherical and engages at the u per end of the bearing, a spherical inner su ace of a centi'al portion; of a one piece saddle or yoke 81.

Packing rin 82 are placed between the inwardly exten ing portions 31 of the outer race 30 and the outer surfaces of the sections 20 and 21 of the inner race for the purpose of preventing the escape of lubricant from the hearing.

The yoke 81 is formed with inwardly projecting parallel webs 83 disposed ad acent to but spaced from the side edges of the outer race 30.

The collar 36 is mounted on the axle 25 against'the shoulder 35 and the bearing is held against the collar 36 by a threaded nut orsleeve 85 which is threaded on the split or two-part ring 41 mounted in an annular groove 42 formed in the axle. The nut or sleeve 85 has a longitudinal conduit or groove 86 which communicates with an oil conduit 87 formed in the section 21 of the inner race. The conduit 87 conducts lubricant to a central opening 88 formed between the sections 20 and 21through which lubricant is conducted to the rollers. A pocket 89 is formed in the end of the nut or sleeve85 and receives lubricant through an opening 90 normally closed by a plug 91.

The yoke 81 comprises a pair of U-shaped frames and 96 which are connected at their upper ends b the central portion 80 above referred to. he frames 95 and 96 are adapted to fit between the inner surfaces of the portions 15 and 16 of the pedestal frames 11 and 12 and are provided with flanges 97 which engage the outer faces of the phrtions 15 and 16 and secure the bearing in position between the frames 11 and 12 and in slidin relation thereto. If desired, the yoke can he fixedly secured between the frames 11 and 12.

From the showing in Fig. 7 it will be noted that the webs 83 do 'not extend entirely around the axle and hearing but only around substantially one-half of the axle and bearngs In other words, the yoke or saddle 81 1s so formed that the bearing can he slipped in from below between the legs of the U- shaped frames 95 and.96. l

From the showing in Fig. 9 it will be seen that the outer race 30 extends into the groove '17 between the portions and 16 of the side frames 11 and 12. The parts are so proportloned that the outer ring can rotate in this channel'or groove as well as within the central portion 80 of the saddle 81. 10 The method of assembling the bearing shown in Figs. 7 to 10 inclusive will be clear from the foregoing description but may be briefly described as follows. The collar 36, inner race 20, 21, split ring 41 and threaded sleeve or nut 85, rollers 23, 24 and outer race 30 are first mounted on the axle. The saddle 81 is then slipped over the bearing throughthe open lower'ends of the U-shaped frames 95 and 96 and the saddle having the bearing therein is then mounted between the frames 11 and 12 of the pedestal.

In both forms of the invention illustrated, the axle can tilt to a slight extent with reference to the bearing mounting by reason of the spherical outer surface of the outer race 30 and the corresponding inner surface of the bearing mounting which engages the outer race 30 at the upper end thereof.

In the form of the invention shown in surfaces of the projections 56 onthe outer race and the inner edges 58 of the webs 52 ture comprises a minimum number of parts and by reason of the design of the structure, the bearing can be easily and readily assembled or mounted.

Although certain specific embodiments of the invention have been'particularly shown and described, it will be understood that the invention is capable of modification and that changes in the construction and in the arrangement of the various cooperating parts may be made without departing from the spirit or scope of the invention, as expressed in the following claims.

\Vhat I claim is: y

1. In combination, a pedestal having a pair of inwardly facing frame members, a roller bearin mounting comprising a one piece yoke idably supported between said side frames and a roller bearing including an outer race having a spherical outer surface engaging and tiltably mounted in said yoke.

2. In combination, a pedestal having a pair of inwardly facing frame members, a roller bearing mounting comprising a one piece yoke slidably supported between said side Figs. 3 to 6 inclusive, the arcuate engaging,

slidably supporte and a roller bearing mounted in said yoke,

frames and a roller bearing mounted in and havinlg an outer race engaging said yoke.

3 n combination, a pedestal having a pair of inwardly facing frame members, a yoke comprising a pair of inverted U-shaped frames connected at their upper ends bya central portion, said yoke bein slidably mounted between said frame mem rs and a roller bearing mounted in said yoke and having an outer race engaging said central portion.

4. In combination, a pedestal having a pair of inwardly facing frame members, a yoke comprising a pair .of inverted U-shaped frames connected at their upper ends by a central portion having inwardly extending substantially parallel webs, said yoke being slidably mounted between said frame members and a roller bearing mounted in said yoke and having an outer race engaging said cengral portion and disposed between said we s.

5. In combination, a pedestal having a pair of inwardly facing frame members, a yoke comprising a pair of inverted U-shaped frames connected at their uper ends by a central portion having a s herical inner surface, said yoke being sli ably mounted between said frame members and a roller bearing mounted in said yoke and having an outer race provided with a spherical outer surface engaging the spherical surface of said central portion.

6. In combination, a pedestal having a pair of inwardly facin in said frame mem ers,

said bearing comprising an inner race having oppositely inclined conical surfaces, two setsof conical rollers mounted on said inner race, and an outer race having oppositel inclined conical surfaces engaging said ro lers, said outer r'ace having an outerspherical surface engaging a correspondingly curved surface on the yoke.

7. In combination, a pedestalhaving a pair of inwardly facing frame members, a roller bearing mounting comprising a yoke open at one end and supported between said" side frames and a roller bearing mounted in said yoke.

8. of inwardly facing frame members, a roller bearing mounting comprising a yoke open at one end and supported between said side frames and a roller bearing having an outer race tiltably mounted in said yoke.

9. In combination, a pedestal having a pair of inwardly facing frame members, a roller bearing mounting comprising a one piece yoke sup orted between said side frames and a roller caring mounted in and having an outer race engaging saidyoke.

10. In combination, a pedestal having a pair of inwardly facing frame members, a.

frame members, a oke In combination, a pedestal having a pair 7 yoke comprising a pair of inverted U-shaped frames connected at their upper ends by a .central ortion having inwardly extending substantially parallel webs, said yoke being mounted between said frame members and a roller bearing mounted in said yoke and having an outer race engaging said central portion and disposed between said webs.

11. In combination a pedestal having a m pair of inwardly facmg frame members, a yoke comprising a pair of inverted U-shaped frames connected at their upper ends by a central portion having a spherical inner surface, said yoke being mounted between said 15 frame members and a roller bearing mounted in said yoke and having an outer race provided with a s herical outer surface engaging the spherlcal surface of said central portion.

m 12. In combination, a pedestal having a pair of inwardly facing frame members, a yoke supported in said frame members, and a roller bearing mounted in said yoke, said bearing com rising ap inner race having opg5 positely inc 'ned conical surfaces, two sets of conical rollers mounted on said inner race, 1 and an outer race having oppositely inclined conical surfaces engafg-ing said rollers and having an outer sur ace tiltably engaging 30 said yoke.

13. In combination a pedestal comprising two sets of inwardly facin side frames, each set consisting .of a pair 0 substantially arallel spaced frame members, and a roller 5 aring mounted between said sets of side frames and having an outer bearing race projectin between the frame members of each set an spaced therefrom.

$3114. In combination, a pedestal comprisin w 3W0 sets of inwardly facing side frames, eac

set consisting of a pair of substantially parallel spaced frame members, and a roller bearing mounted between said sets of side frames and having an outer bearing race a pro acting between the frame membersof eac set and freely rotatable therebetween.

15. In combination, a pedestal comprising two sets of inwardly facing side frames, each set consisting of a pair of substantiall par- 5 allel spaced frame members, a yoke shdably mounted between said sets of ames, and a roller bearing mounted in said yoke and between said sets of side frames and having an outer bearing race projectin between the 55 frame members of each set an spaced therefrom. In witness whereof, I have hereunto set my hand this 3rd day of June, 1927.

WILIELM B. BRONANDER. 

